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Trilepton+top signal from chargino-neutralino decays of MSSM charged Higgs bosons at the LHC

  • M. BissetEmail author
  • F. Moortgat
  • S. Moretti
theoretical physics

Abstract.

We perform for the Large Hadron Collider (LHC) a detailed study of charged Higgs boson production via the top-bottom quark associated mode followed by decays into a chargino and a neutralino, with masses and couplings as given by the general minimal supersymmetric standard model (MSSM). We focus our attention on the region of parameter space with \(m_{H^{\pm}} > m_t\) and intermediate values of \(\tan\beta\), where identification of \(H^{\pm}\) via decays into standard model (SM) particles has proven to be ineffective. Modelling the CMS detector, we find that a signature consisting of three hard leptons accompanied by a hadronically reconstructed top quark plus substantial missing transverse energy, which may result from \(H^{\pm} \rightarrow {{\widetilde\chi}}_{1,2}^{\pm} {{\widetilde\chi}}_{1,2,3,4}^0\) decays, can be made viable over a large variety of initially overwhelming SM and MSSM backgrounds, provided MSSM input parameters are favourable: notably, small \(\vert \mu \vert\) and light sleptons are important prerequisites. We quantify these statements by performing a fairly extensive scan of the parameter space, including realistic hadron-level simulations, and delineate some potential discovery regions.

Keywords

Parameter Space Higgs Boson Large Hadron Collider Minimal Supersymmetric Standard Model Important Prerequisite 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin/Heidelberg 2003

Authors and Affiliations

  1. 1.Department of PhysicsTsinghua UniversityBeijingP.R. China
  2. 2.Department of PhysicsUniversity of AntwerpenAntwerpenBelgium
  3. 3.Department of Physics and AstronomyUniversity of SouthamptonHighfield, SouthamptonUK

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